Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Unclassified
SQ1591
U.S. Official No. 1327475
Not yet on Master's MateType
Unclassified
Flag
USALength
12.2 m
Beam
3 m
Draft
1.5 m
First reported
Jun 2026
AIS reports
1
An American boat, SQ1591 measures 12.2 metres. She carries 3 metres in the beam and a 1.5 m draft. Her registration reads U.S. official number 1327475. Bring SQ1591 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
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Is SQ1591 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever SQ1591 roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SQ1591 on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SQ1591 and switch it all on
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About SQ1591
What kind of vessel is SQ1591?
SQ1591 is a Unclassified flagged to United States of America.
What is SQ1591's U.S. Official No.?
SQ1591's U.S. Official No. is 1327475.
How big is SQ1591?
SQ1591 is about 12.2 m long, 3 m on the beam, drawing 1.5 m.
Is SQ1591 on the Master's Mate Safety Initiative Network?
Not yet. If SQ1591 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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